You may try https://hoppscotch.io/

I've not used it, but have heard of Prestige (https://github.com/sharat87/prestige). It bills itself as "A text-based HTTP client in the browser. An interface-less Postman." I hope that helps!

You can try https://github.com/flawiddsouza/Restfox. It's a web based HTTP client based on Postman and Insomnia.

Disclaimer: I'm the maintainer for it.

Hey! Buy the way I have plans to support different protocols later such as HTTP, GraphQL, etc. :)